This silent b&w film has intertitles in gothic script (in German). The film features cineradiography of x-rays of eating, drinking and digestion. Solid food is consumed sideways on with a good view of the mouth, then the thorax as food and drink pass down to the stomach. Finally stools are seen forming and dropping through the intestines to the colon.
Professor Dr Janker, Bonn, Reichsstelle fur den unterrichsfilm.